海底电缆中间接头状态监测设计技术研究

Research on the Design Technology of Monitoring the State of Intermediate Joints in Submarine Cables

摘要

海洋观测系统中，海底电缆中间接头是较脆弱的环节，当接头处由于外力原因损坏，处于损坏的临界状态，系统暂时能正常运行，但过一段时间后，系统突然全面瘫痪，而此时海况可能并不允许出海施工，而使海洋数据丢失一段时间，这会造成系统运行率的直线下降。本系统在接头处安装MEMS温湿度传感器、应变片和加速度传感器，采用低功耗软硬件设计，来监测接头处的温湿度、阻值变化（形变）、角度和加速度，并采用卡尔曼滤波算法处理数据，在监测到温湿度、应变电压、角度和加速度异常时，发出告警，从而提前预知故障，提前处理。

Abstract

In the ocean observation system, the intermediate joint of the submarine cable is a relatively fragile link. When the joint is damaged due to external forces and is in a critical state of damage, the system can temporarily operate normally. However, after a period of time, the system suddenly becomes completely paralyzed, and the sea conditions may not allow offshore construction, resulting in the loss of ocean data for a period of time. This will cause a linear decrease in the system’s operating rate. This system installs MEMS temperature and humidity sensors, strain gauges, and acceleration sensors at the joint, using low-power software and hardware design to monitor temperature and humidity, resistance changes (deformation), angle, and acceleration at the joint. The Kalman filter algorithm is used to process the data, and when abnormal temperature and humidity, strain voltage, angle, and acceleration are detected, an alarm is issued to predict faults in advance and handle them in advance.

关键词

海底电缆中间接头 / 低功耗 / 温湿度 / 应变片 / 加速度 / 告警 / 预知故障

Key words

Intermediate joint of submarine cable / Low power consumption / Temperature and humidity / Strain gauges / Acceleration / give an alarm / Anticipate faults

参考文献

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